The sentence may be affected by the previous one as the context could determine which part of the sentence should get more focus.

Take a look at these examples

Das plane ich, nächste Woche zu machen. (focus on action, you may not be sure if you will get around to it)
Nächste Woche habe ich vor, das zu machen. (focus on time when talking about several future plans)
Das nehme ich mir nächste Woche vor. (action focus, more natural and a tiny bit ambitious)